3,030 Matching Annotations
  1. May 2022
    1. When chatting with my father about the proton research he summed it up nicely, that two possible responses to hearing that how we measure something seems to change its nature, throwing the reliability of empirical testing into question, are: “Science has been disproved!” or “Great!  Another thing to figure out using the Scientific Method!” The latter reaction is everyday to those who are versed in and comfortable with the fact that science is not a set of doctrines but a process of discovery, hypothesis, disproof and replacement.  Yet the former reaction, “X is wrong therefore the system which yielded X is wrong!” is, in fact, the historical norm.

      via http://known.kevinmarks.com/2021/sketches-of-a-history-of-skepticism-part-i-classical-eudaimonia

    1. The biggest mistake—and one I’ve made myself—is linking with categories. In other words, it’s adding links like we would with tags. When we link this way we’re more focused on grouping rather than connecting. As a result, we have notes that contain many connections with little to no relevance. Additionally, we add clutter to our links which makes it difficult to find useful links when adding links. That being said, there are times when we might want to group some things. In these cases, use tags or folders.

      Most people born since the advent of the filing cabinet and the computer have spent a lifetime using a hierarchical folder-based mental model for their knowledge. For greater value and efficiency one needs to get away from this model and move toward linking individual ideas together in ways that they can more easily be re-used.

      To accomplish this many people use an index-based method that uses topical or subject headings which can be useful. However after even a few years of utilizing a generic tag (science for example) it may become overwhelmed and generally useless in a broad search. Even switching to narrower sub-headings (physics, biology, chemistry) may show the same effect. As a result one will increasingly need to spend time and effort to maintain and work at this sort of taxonomical system.

      The better option is to directly link related ideas to each other. Each atomic idea will have a much more limited set of links to other ideas which will create a much more valuable set of interlinks for later use. Limiting your links at this level will be incredibly more useful over time.

      One of the biggest benefits of the physical system used by Niklas Luhmann was that each card was required to be placed next to at least one card in a branching tree of knowledge (or a whole new branch had to be created.) Though he often noted links to other atomic ideas there was at least a minimum link of one on every idea in the system.

      For those who have difficulty deciding where to place a new idea within their system, it can certainly be helpful to add a few broad keywords of the type one might put into an index. This may help you in linking your individual ideas as you can do a search of one or more of your keywords to narrow down the existing ones within your collection. This may help you link your new idea to one or more of those already in your system. This method may be even more useful and helpful for those who are starting out and have fewer than 500-1000 notes in their system and have even less to link their new atomic ideas to.

      For those who have graphical systems, it may be helpful to look for one or two individual "tags" in a graph structure to visually see the number of first degree notes that link to them as a means of creating links between atomic ideas.

      To have a better idea of a hierarchy of value within these ideas, it may help to have some names and delineate this hierarchy of potential links. Perhaps we might borrow some well ideas from library and information science to guide us? There's a system in library science that uses a hierarchical set up using the phrases: "broader terms", "narrower terms", "related terms", and "used for" (think alias or also known as) for cataloging books and related materials.

      We might try using tags or index-like links in each of these levels to become more specific, but let's append "connected atomic ideas" to the bottom of the list.

      Here's an example:

      • broader terms (BT): [[physics]]
      • narrower terms (NT): [[mechanics]], [[dynamics]]
      • related terms (RT): [[acceleration]], [[velocity]]
      • used for (UF) or aliases:
      • connected atomic ideas: [[force = mass * acceleration]], [[$$v^2=v_0^2​+2aΔx$$]]

      Chances are that within a particular text, one's notes may connect and interrelate to each other quite easily, but it's important to also link those ideas to other ideas that are already in your pre-existing body of knowledge.


      See also: Thesaurus for Graphic Materials I: Subject Terms (TGM I) https://www.loc.gov/rr/print/tgm1/ic.html

  2. Apr 2022
    1. ReconfigBehSci [@SciBeh]. (2021, December 6). I do not understand the continued narrative that makes it sound as if extant legal systems don’t already provide the framework for assessing whether rights are unduly infringed by vaxx passports and mandates. This is exactly what constitutions are for. [Tweet]. Twitter. https://twitter.com/SciBeh/status/1467818167766593538

    1. We are 99% confident that the true average “attitude” difference betweenliving environments is between 1.32 and 7.88. At a significance level of 0.01we can say that living in a minority environment is associated with higherscore

      99% confident that the true average (result) is between these two numbers;

      at 1% (0.01) significance, we can scientifically assume there is a causal relationship

    1. Humans’ tendency to“overimitate”—to reproduce even the gratuitous elements of another’s behavior—may operate on a copy now, understand later basis. After all, there might begood reasons for such steps that the novice does not yet grasp, especially sinceso many human tools and practices are “cognitively opaque”: not self-explanatory on their face. Even if there doesn’t turn out to be a functionalrationale for the actions taken, imitating the customs of one’s culture is a smartmove for a highly social species like our own.

      Is this responsible for some of the "group think" seen in the Republican party and the political right? Imitation of bad or counter-intuitive actions outweights scientifically proven better actions? Examples: anti-vaxxers and coronavirus no-masker behaviors? (Some of this may also be about or even entangled with George Lakoff's (?) tribal identity theories relating to "people like me".

      Explore this area more deeply.

      Another contributing factor for this effect may be the small-town effect as most Republican party members are in the countryside (as opposed to the larger cities which tend to be more Democratic). City dwellers are more likely to be more insular in their interpersonal relations whereas country dwellers may have more social ties to other people and groups and therefor make them more tribal in their social interrelationships. Can I find data to back up this claim?

      How does link to the thesis put forward by Joseph Henrich in The WEIRDest People in the World: How the West Became Psychologically Peculiar and Particularly Prosperous? Does Henrich have data about city dwellers to back up my claim above?

      What does this tension have to do with the increasing (and potentially evolutionary) propensity of humans to live in ever-increasingly larger and more dense cities versus maintaining their smaller historic numbers prior to the pre-agricultural timeperiod?

      What are the biological effects on human evolution as a result of these cultural pressures? Certainly our cultural evolution is effecting our biological evolution?

      What about the effects of communication media on our cultural and biological evolution? Memes, orality versus literacy, film, radio, television, etc.? Can we tease out these effects within the socio-politico-cultural sphere on the greater span of humanity? Can we find breaks, signs, or symptoms at the border of mass agriculture?


      total aside, though related to evolution: link hypercycles to evolution spirals?

    1. Katherine Ognyanova. (2022, February 15). Americans who believe COVID vaccine misinformation tend to be more vaccine-resistant. They are also more likely to distrust the government, media, science, and medicine. That pattern is reversed with regard to trust in Fox News and Donald Trump. Https://osf.io/9ua2x/ (5/7) https://t.co/f6jTRWhmdF [Tweet]. @Ognyanova. https://twitter.com/Ognyanova/status/1493596109926768645

    1. ReconfigBehSci. (2020, November 25). @ToddHorowitz3 @sciam do you mean the specific article is bad, or the wider claim/argument? Because as someone who does research on collective intelligence, I’d say there is some reason to believe it is true that there can be “too much” communication in science. See e.g. The work of Kevin Zollman [Tweet]. @SciBeh. https://twitter.com/SciBeh/status/1331672900550725634

    1. Dr Nisreen Alwan 🌻. (2020, March 14). Our letter in the Times. ‘We request that the government urgently and openly share the scientific evidence, data and modelling it is using to inform its decision on the #Covid_19 public health interventions’ @richardhorton1 @miriamorcutt @devisridhar @drannewilson @PWGTennant https://t.co/YZamKCheXH [Tweet]. @Dr2NisreenAlwan. https://twitter.com/Dr2NisreenAlwan/status/1238726765469749248

    1. Dr. Jonathan N. Stea. (2021, January 25). Covid-19 misinformation? We’re over it. Pseudoscience? Over it. Conspiracies? Over it. Want to do your part to amplify scientific expertise and evidence-based health information? Join us. 🇨🇦 Follow us @ScienceUpFirst. #ScienceUpFirst https://t.co/81iPxXXn4q. Https://t.co/mIcyJEsPXe [Tweet]. @jonathanstea. https://twitter.com/jonathanstea/status/1353705111671869440

    1. Adam Kucharski. (2020, December 13). I’ve turned down a lot of COVID-related interviews/events this year because topic was outside my main expertise and/or I thought there were others who were better placed to comment. Science communication isn’t just about what you take part in – it’s also about what you decline. [Tweet]. @AdamJKucharski. https://twitter.com/AdamJKucharski/status/1338079300097077250

    1. ReconfigBehSci. (2020, November 10). Starting soon Day 2 SchBeh Workshop ‘Building an online information environment for policy relevant science’ join for a Q&A with Martha Scherzer (WHO) on role of behavioural scientists in a crisis followed by sessions on ‘Online Discourse’ and ‘Tools’ https://t.co/Gsr66BRGcJ [Tweet]. @SciBeh. https://twitter.com/SciBeh/status/1326121764657770496

    1. ReconfigBehSci. (2021, November 14). Join us this week at our 2021 SciBeh Workshop on the topic of ‘Science Communication as Collective Intelligence’! Nov. 18/19 with a schedule that allows any time zone to take part in at least some of the workshop. Includes: Keynotes, panels, and breakout manifesto writing 1/6 [Tweet]. @SciBeh. https://twitter.com/SciBeh/status/1459813525635973122

    1. An experiment that could confirm the fifth state of matter in the universe—and change physics as we know it—has been published in a new paper from the University of Portsmouth. googletag.cmd.push(function() { googletag.display('div-gpt-ad-1449240174198-2'); }); Physicist Dr. Melvin Vopson has already published research suggesting that information has mass and that all elementary particles, the smallest known building blocks of the universe, store information about themselves, similar to the way humans have DNA. Now, he has designed an experiment—which if proved correct—means he will have discovered that information is the fifth form of matter, alongside solid, liquid, gas and plasma. Dr. Vopson said: "This would be a eureka moment because it would change physics as we know it and expand our understanding of the universe. But it wouldn't conflict with any of the existing laws of physics. "It doesn't contradict quantum mechanics, electrodynamics, thermodynamics or classical mechanics. All it does is complement physics with something new and incredibly exciting." Dr. Vopson's previous research suggests that information is the fundamental building block of the universe and has physical mass. He even claims that information could be the elusive dark matter that makes up almost a third of the universe. He said: "If we assume that information is physical and has mass, and that elementary particles have a DNA of information about themselves, how can we prove it? My latest paper is about putting these theories to the test so they can be taken seriously by the scientific community." Dr. Vopson's experiment proposes how to detect and measure the information in an elementary particle by using particle-antiparticle collision. He said: "The information in an electron is 22 million times smaller than the mass of it, but we can measure the information content by erasing it. "We know that when you collide a particle of matter with a particle of antimatter, they annihilate each other. And the information from the particle has to go somewhere when it's annihilated." The annihilation process converts all the remaining mass of the particles into energy, typically gamma photons. Any particles containing information are converted into low-energy infrared photons. In the study Dr. Vopson predicts the exact energy of the infrared photons resulting from erasing the information. Dr. Vopson believes his work could demonstrate that information is a key component of everything in the universe and a new field of physics research could emerge.

      This idea of information having mass and the properties of other elementary principles is fascinating. Also the tie-ins to dark matter is really, really mind-bending.

    1. The book was reviewed in all major magazines and newspapers, sparking what historian Ronald Kline has termed a “cybernetics craze,” becoming “a staple of science fiction and a fad among artists, musicians, and intellectuals in the 1950s and 1960s.”

      This same sort of craze also happened with Claude Shannon's The Mathematical Theory of Information which helped to bolster Weiner's take.

    1. Last night while watching a video related to The First Astronomers, I came across a clip in which Australian elder Uncle Ghillar Michael Anderson indicates that indigenous dendroglyphs (markings on trees) or petroglyphs (markings on stone in the stony territories) are the libraries of the Indigenous peoples who always relate (associate) their stories from the markings back up to the sky (stars, constellations).

      These markings remind me of some of those found on carved stone balls in neolithic European contexts described by Dr. @LynneKelly in The Memory Code and Memory Craft and carvings on coolamon in Knowledge and Power.

      Using the broad idea of the lukasa and abstract designs, I recently bought a small scale version of the Aberlemno Pictish Cross as a small manual/portable memory palace, which is also an artwork that I can hang on the wall, to use to associate memories to the designs and animals which are delineated in 18 broad areas on the sculpture. (Part of me wonders if the communities around these crosses used them for mnemonic purposes as well?)

      scale model of the Aberlemno Pictish Cross with Celtic designs in the foreground with the life size cross in the background

      Is anyone else using abstract designs or artwork like this for their memory practice?

      Anyone know of other clever decorative artworks one could use and display in their homes/offices for these purposes?


      For those interested in the archeological research on dendroglyphs in Australia: - The Western Yalanji dendroglyph: The life and death of an Aboriginal carved tree - Review: The Dendroglyphs or ‘Carved Trees’ of New South Wales by Robert Etheridge (Content warning: historical erasure of Indigenous culture)

    1. and within that within that area then you have on one on the light side with on the eastern side of the milky way all of those people there have a 00:39:56 relationship to each other all the tribes and all the clans and so and then you come on to the west side exactly the same thing again so on the east side those stars on the 00:40:10 bright side we are not allowed if you've got a totemic system that belongs to the east side you cannot marry your children into any one of them you must marry across the river so 00:40:23 you've got to go across the river which is that milky way and so the light side's going to go across the dark side to find their wives and so the old people understood who the people were and 00:40:35 and so they understood that genealogical background of every family every child and so they made sure that that when you made a promise to a child you 00:40:49 make sure that there are at least five generation removed from the people you want to marry them back into genetics was very important to us even though we didn't know it was genetics at 00:41:01 the time but it was maintaining the purity of the people

      There's a light side (East) and a dark side (West) of the Milky Way (seen as a river) which is mirrored into the moieties of the people. Dark people must go across the river to marry those on the light side. The elders kept track of all the genealogy in the totemic system of every family and every child and made their promises such that there were at least five generations removed from their family to maintain the purity (in the sense of genetic soundness, not genetic purity from a "racial" perspective) of the people.

      via Uncle Ghillar Michael Anderson

    1. Computer science is the study of problems, problem-solving, and the solutions that come out of the problem-solving process. Given a problem, a computer scientist’s goal is to develop an algorithm, a step-by-step list of instructions for solving any instance of the problem that might arise. Algorithms are finite processes that if followed will solve the problem. Algorithms are solutions.

      Computer science definition

    1. Shalin Naik. (2021, October 14). 📢The first episode of the @thejabgab http://thejabgab.com is LIVE!! 🎙 Join me and the fabulous comedians @nazeem_hussain and @calbo as they chat about the Delta variant, vaccines …. And cows? With experts @DrKGregorevic and @BedouiSammy! Search your fav platform or... Https://t.co/bo4HiRfqF6 [Tweet]. @shalinhnaik. https://twitter.com/shalinhnaik/status/1448510610837159939

    1. Brianna Wu. (2021, June 5). MRNA is unbelievably fragile. The enzymes that degrade it are literally everywhere. That’s why they had to develop specialized lipid nanoparticles to deliver it. It would last two seconds in a sewer system. Also, it gets separated from the delivery system after it’s injected. Https://t.co/35dZ6r6UAq [Tweet]. @BriannaWu. https://twitter.com/BriannaWu/status/1400998163968933888

    1. ReconfigBehSci. (2021, July 19). this is how the failure to understand what efficacy means and how it relates to outcomes will be seized on over and over again. Cookie cutter fallacies require cookie cutter clarification by machine tools to be combatted effectively (at least at current levels of moderation) [Tweet]. @SciBeh. https://twitter.com/SciBeh/status/1417164191664730112

  3. Mar 2022
    1. James Heathers. (2021, October 26). Perish the thought I would be as peremptory as @GidMK. No, I’m going to hector, mock, or annoy those replies, THEN ask for money, THEN block you when I get bored. See, these aren’t rebuttals. No-one’s said anything about the actual work. Nothing. Not a sausage. [Tweet]. @jamesheathers. https://twitter.com/jamesheathers/status/1452980059497762824

    1. ReconfigBehSci. (2021, November 20). Thanks to everyone who took part in our Workshop on #SciComm as Collective Intelligence It was amazing! Materials will be uploaded to http://SciBeh.org website 1/2 @kakape @DrTomori @SpiekermannKai @GeoffreySupran @ArendJK @STWorg @dgurdasani1 @suneman @philipplenz6 [Tweet]. @SciBeh. https://twitter.com/SciBeh/status/1461978072924762117

    1. This approach allows the students to actually observe (1) the development of modern scientific knowledge; (2) authentic research that is conducted in the research labs nowadays; (3) who are currently the leading scientists and how they work; and (4) the nature of contemporary science.

      Authors' own synthesis about the possibilities of the approach.

    1. Mia Malan. (2021, November 25). [Thread] What is the potential impact of the new B.1.1.529 #COVID19 variant? @rjlessells: 1. It’s relatively simple to detect some B.1.1.529 cases, as it’s possible to use PCR tests to do this in some cases 2. B.1.1.529 = has many mutations across different parts of the virus https://t.co/ytktqLzJUi [Tweet]. @miamalan. https://twitter.com/miamalan/status/1463846528578109444

    1. for tens of thousands of years Aboriginal people and tourists Islander people have paid incredibly close attention to the world around them and still do today have developed knowledge 00:09:51 systems that are more complex than we could ever imagine or as intellectually capable as anybody else if not much more and that their traditions have a very detailed scientific component that we can learn from if we just shut up and 00:10:04 listen

      For tens of thousands of years Aboriginal people and Torres Islander people have paid incredibly close attention to the world around them and still do today; have developed knowledge systems that are more complex than we could ever imagine; are as intellectually capable as anybody else if not much more, and that their traditions have a very detailed scientific component that we can learn from if we just shut up and listen. —Dr. Duane Hamacher

      AMEN! What a fantastic quote.

    1. the going through abstraction and re-specification so i think i became interested in cetera carson also because i saw a lot of similarities 01:11:30 to what historians of science describe as experimental work in laboratories and that is especially in the field of science and technology 01:11:43 studies especially the work of hanzio greinberger he works for the max planck institute for history of science in berlin and the way he describes 01:11:55 um experimental work as a form of material deconstruction um is my blueprint for understanding 01:12:10 the work of lumen

      Sönke Ahrens used Hans-Jörg Rheinberger's description of experimental work as a form of material deconstruction as a framework for looking at Niklas Luhmann.

    1. nura Gila indigenous Center at UNSW is working closely with Microsoft Research to incorporate indigenous 00:12:36 content into the world by telescope so we're creating interactive tours and all kinds of different materials to put in

      Microsoft Research has create the World Wide Telescope (https://www.microsoft.com/en-us/research/project/worldwide-telescope/), an interactive free astronomy software, which has a rich body of knowledge. The Nura Gili: Centre for Indigenous Programs at UNSW (https://www.indigenous.unsw.edu.au/) is working in concert with them to include Indigenous knowledge in the project.

    1. Learn Data Science from IIT Madras faculty & Industry experts and earn a Data Science certification from India's best Engineering College. Become a Data Scientist through multiple data Science courses covered in this 7-month data science certification program with hands-on exercises & Project work.

      This Data Science Course is offered by Intellipaat in collaboration with IIT Madras (one of the renowned institutes in India) to help you master Data Science skills like Python, programming, Data Visualization, Statistical analysis and computing, Deep Learning, etc.

      Eager to step into the field of Data Science? Explore the Page now!

    1. Who were the world’s first astronomers? The answer typicallyincludes scientists such as Galileo, Nicolaus Copernicus, or ancientcivilisations that gave birth to what we consider Western science,such as Sumer in Mesopotamia.

      Given the predominantly non-literate civilizations that comprised the ancient Near East, I've been wondering about how they may have actually been closer to Indigenous cultures than they are to more modern, literate Western culture.

      Perhaps he shouldn't dismiss them so readily here, but rather tie them more directly into his broader thesis.

    2. The stars also give meaning to our existence. The sky is a canvasof sparkling dots that we connect to form familiar patterns, to whichwe assign narratives about their formation and meaning. Across thesky, ancestors, heroic figures, animals, landscapes and fantasticbeasts tell stories of the human experience. They speak of braveryand deceit, war and peace, sex and violence, punishment andreward. It is fascinating to find striking similarities in stories about thestars across vastly different cultures, with even more similarities in theways they are utilised.

      Are these graphic and memorable stories strikingly similar because of the underlying packages of orality and memory used in these cultures?

      This is one of my primary motivations for reading this text.

    3. Indigenous science has long been rejected without consideration,overlooked, or exploited without recognition by powerful Westerninterests. Bio-piracy sees Indigenous Knowledge of plants stolen andpatented for use in the food, cosmetic and pharmaceutical industrieswith little or no recognition or recompense. Indigenous starknowledge has been ignored, even when that knowledge clearlyexisted long before the ‘discoveries’ of Western science.

      Indigenous knowledge has been broadly ignored, rejected, and even exploited without any recognition by Western colonizers. Examples of appropriation include knowledge of plants patented for use in food, medicine, and cosmetics.

    4. Indigenous sciences are highly interconnected, while Westernscience tends to be divided into different categories by discipline, witheach diverging into ever smaller focus areas.

      Indigenous sciences are highly interconnected while Western sciences tend to be highly sub-divided into ever smaller specializations.


      Are Indigenous sciences naturally interconnected or do they form that way because of the associative memory underlying the cultural orality by which they are formed and transmitted? (I would suspect so, but don't yet have the experience to say definitively. Evidence for this should be collected.)

    5. ‘Yes, ofcourse we have science! We’ve been saying that for years, but noone will listen.’

      No one has listened to Indigenous peoples when they say that they have science. The major boundary in hearing in this case is that Indigenous peoples rely on orality where as Western people rely more heavily on literacy. This barrier has obviously been a major gap between these cultures.

    6. A sense ofconnectedness is a unique part of Indigenous science. In Westernscience, knowledge is often considered separate from the people whodiscover it, while Indigenous cultures see knowledge as intricatelyconnected to people.

      A primary difference between Indigenous science and Western science is the first is intimately connected to the practitioners while the second is wholly separate.


      Would Western science be in a healthier space currently if its practice were more tightly bound to the people who need to use it (everyone)? By not being bound to the everyday practice and knowledge of our science, increasingly larger portions of Western society don't believe in science or its value.

    7. Science is something anyone can do, and everyone has done. Theprocess on paper is simple: closely observe the world, test what you learn,and transmit it to future generations. Just because Indigenous cultureshave done this without test tubes doesn’t make them unscientific—justdifferent.

      Perhaps there's a clever dig here that she uses the phrase "on paper" here because most indigenous cultures have done these things orally!

      quote from Dr. Annette S. Lee

    8. As Professor Rangi Mātāmua, a Māoriastronomy scholar, explains:Look at what our ancestors did to navigate here—you don’t do that onmyths and legends, you do that on science. I think there is empiricalscience embedded within traditional Māori knowledge ... but what they didto make it meaningful and have purpose is they encompassed it withincultural narratives and spirituality and belief systems, so it wasn’t just seenas this clinical part of society that was devoid of any other connection toour world, it was included into everything. To me, that cultural elementgives our science a completely new and deep and rich layer of meaning
    1. Exercises

      2.1.b

      Counterexample: \(\to := {(a, c), (b, c)}\)

      2.3

      \(a \to b\) iff \(a\) encodes Turing machine \(M_a\) and \(b\) encodes a valid terminating computation (sequence of states) of \(M_a\).

      2.9

      Let \(|w|_a := \varphi_a(w)\).

      \(\varphi(w) := 3^{|w|_a} 2^{|w|_b}\)

      Proof

      1. Let \(u \to_1 v\). Then \(\varphi(v) = 3^{|v|_a} 2^{|v|_b} = 3^{|u|_a+1} 2^{|u|_b-2} = 3^{|u|_a} 2^{|u|_b} \frac{3}{4} = \varphi(u) \frac{3}{4} < \varphi(u)\).
      2. Let \(u \to_2 v\). Then \(\varphi(v) = 3^{|v|_a} 2^{|v|_b} = 3^{|u|_a-1} 2^{|u|_b+1} = 3^{|u|_a} 2^{|u|_b} \frac{2}{3} = \varphi(u) \frac{2}{3} < \varphi(u)\).

      2.17

      No.

      Let \(a > b\). Then \([b^n a | n \in [0, 1, \ldots]]\) is an infinite chain according to \(>_{Lex}\).

      Note: This exercise completes the discussion of Lemma 2.4.3.

      4.2

      Let \(s, t\) be terms. Run BFS from \(s\) using \(\leftrightarrow^E\). If \(t\) is encountered, conclude that \(s \approx_E t\). If the BFS finishes enumerating the equivalence class without encountering \(t\), conclude that \(\lnot s \approx_E t\).

      4.4

      Let \(x \in Var(r) \setminus Var(l)\). Let \(p\) be a position of \(x\) in \(r\).

      Infinite chain:

      • \(t_0 = x\)
      • \(t_{i+1} = r[t_i]_p\)

      4.18

      1. a
        • Unifier: \({x \to h(a), y \to h(a)}\)
        • Matcher: \({x \to h(a), y \to x}\)
      2. b
        • Unifier: Unsolvable
        • Matcher: \({x \to h(x), y \to x}\)
      3. c
        • Unifier: \({x \to h(y), z \to b}\)
        • Matcher: Unsolvable
      4. d
        • Unifier: Unsolvable
        • Matcher: Unsolvable

      5.2

      Counterexample TRS \(R\):

      1. \(a \to b\)
      2. \(b \to b\)
    1. The constellations’ positions in the night sky on significant dates, such as solstices and equinoxes, are mirrored in the alignments of the main structures at the compound, he found. Steles were “carefully placed within the temenos to mark the rising, zenith, or setting of the stars over the horizon,” he writes.

      Phoenicians use of steles and local environment in conjunction with their astronomy fits the pattern of other uses of Indigenous orality and memory.

      Link this example to other examples delineated by Lynne Kelly and others I've found in the ancient Near East.

      How does this example potentially fit into the broader framework provided by Lynne Kelly? Are there differences?

      Her thesis fits into a few particular cultural time periods, but what sorts of evidence should we expect to see culturally, socially, and economically when the initial conditions she set forth evolve beyond their original context? What should we expect to see in these cases and how to they relate to examples I've been finding in the ancient Near East?

    2. But crucially, he believes the pool at the center of the complex may have also served as a surface to observe and map the stars. The water surface would have mirrored the sky, as water does – none other than Leonardo da Vinci pointed out the attributes of inert standing water when studying the night sky. For one thing, the stars were adored by the Phoenicians, whether as gods or deceased ancestors; and the position of the constellations was of keen interest to the sailors among them for navigation purposes, Nigro points out.

      Lorenzo Nigro indicates that the "kothon" of Motya in southern Sicily was a pool of Baal whose surface may have been used to observe and map the stars. He also indicates that the Phoenicians adored the stars potentially as gods or deceased ancestors. This is an example of a potentially false assumption often seen in archaeology of Western practitioners misconstruing Indigenous practices based on modern ideas of religion and culture.

      I might posit that this sort of practice is more akin to that of the science of Indigenous peoples who used oral and mnemonic methods in combination with remembering their histories and ancestors.

      Cross reference this with coming reading in The First Astronomers (to come) which may treat this in more depth.


      Leonardo da Vinci documented the attributes of standing water for studying the night sky.

      Where was this and what did it actually entail?

    1. gravitational míreming woh* This text was recognized by the built-in Ocrad engine. A better transcription may be attained by right clicking on the selection and changing the OCR engine to "Tesseract" (under the "Language" menu). This message can be removed in the future by unchecking "OCR Disclaimer" (under the Options menu). More info: http://projectnaptha.com/ocrad

      Gravitational microlensing

      • gravitational wave approaching the earth is interrupted by blackhole, signal gets modified
  4. Feb 2022
    1. 9/8g Hinter der Zettelkastentechnik steht dieErfahrung: Ohne zu schreiben kann mannicht denken – jedenfalls nicht in anspruchsvollen,selektiven Zugriff aufs Gedächtnis voraussehendenZusammenhängen. Das heißt auch: ohne Differenzen einzukerben,kann man nicht denken.

      Google translation:

      9/8g The Zettelkasten technique is based on experience: You can't think without writing—at least not in contexts that require selective access to memory.

      That also means: you can't think without notching differences.

      There's something interesting about the translation here of "notching" occurring on an index card about ideas which can be linked to the early computer science version of edge-notched cards. Could this have been a subtle and tangential reference to just this sort of computing?

      The idea isn't new to me, but in the last phrase Luhmann tangentially highlights the value of the zettelkasten for more easily and directly comparing and contrasting the ideas on two different cards which might be either linked or juxtaposed.


      Link to:

      • Graeber and Wengrow ideas of storytelling
      • Shield of Achilles and ekphrasis thesis

      • https://hypothes.is/a/I-VY-HyfEeyjIC_pm7NF7Q With the further context of the full quote including "with selective access to memory" Luhmann seemed to at least to make space (if not give a tacit nod?) to oral traditions which had methods for access to memories in ways that modern literates don't typically give any credit at all. Johannes F.K .Schmidt certainly didn't and actively erased it in Niklas Luhmann’s Card Index: The Fabrication of Serendipity.

    1. Ali Ellebedy. (2021, December 30). We need those who are adept at #SciComm to explain that “Omicron” is sufficiently different from the original strain that was used to make the vaccine. Therefore, the definition of “fully vaccinated” will have to be updated, but that does not mean that the vaccines have failed. [Tweet]. @TheBcellArtist. https://twitter.com/TheBcellArtist/status/1476649138691444740

    1. "Context" manipulation is one of big topic and there are many related terminologies (academic, language/implementation specific, promotion terminologies). In fact, there is confusing. In few minutes I remember the following related words and it is good CS exam to describe each :p Thread (Ruby) Green thread (CS terminology) Native thread (CS terminology) Non-preemptive thread (CS terminology) Preemptive thread (CS terminology) Fiber (Ruby/using resume/yield) Fiber (Ruby/using transfer) Fiber (Win32API) Generator (Python/JavaScript) Generator (Ruby) Continuation (CS terminology/Ruby, Scheme, ...) Partial continuation (CS terminology/ functional lang.) Exception handling (many languages) Coroutine (CS terminology/ALGOL) Semi-coroutine (CS terminology) Process (Unix/Ruby) Process (Erlang/Elixir) setjmp/longjmp (C) makecontext/swapcontext (POSIX) Task (...)
    1. To satisfy the architecture of a modern process, a space sepa-rate from the usual library business is furnished, a catalog room or working memory for a central bibliographic unit. In this CBU, the program pro-cesses data contributed by various paths.

      Note here how the author creates the acronym CBU out of central bibliographic unit as a means of creating a connection to computer jargon like CPU (central processing unit). I suspect that CBU was not an acronym used at the time.

      bacrkonym?

    Tags

    Annotators

    1. Ulrich Elling. (2022, January 12). While #Omicron BA.1 leads the race, the little sister BA.2 is catching up in numbers. They are rather different with likely functional implications. BA.2 might be more immune evasive in RBD, less in NTD. And due to reduced mutation load in NTD maybe different fusion properties? Https://t.co/kEACjzQDs3 [Tweet]. @EllingUlrich. https://twitter.com/EllingUlrich/status/1481214901997682692

    1. Dr Emma Hodcroft. (2022, January 28). Just to clarify some confusion about what “Omicron” is. “Omicron” has always applied to the whole family (BA.1-3—We’ve known about them all since late-Nov/early-Dec). But the prevalence of BA.1 meant that it got shorthanded as ’Omicron’—That’s causing some confusion now!🥴 https://t.co/M4FwzGbluo [Tweet]. @firefoxx66. https://twitter.com/firefoxx66/status/1486999566725656576

    1. Jonathan Li on Twitter: “There’s a lineage of Omicron that’s gained the R346K mutation (BA.1.1). This one could spell some trouble for the AZ mAb (tixagevimab/cilgavimab, Evusheld) that’s being used for pre-exposure prophylaxis. If you want to learn about tix/cil vs Omicron, read on 1/7” / Twitter. (n.d.). Retrieved February 6, 2022, from https://twitter.com/DrJLi/status/1487479972293853188

    1. Deepti Gurdasani. (2022, January 29). Going to say this again because it’s important. Case-control studies to determine prevalence of long COVID are completely flawed science, but are often presented as being scientifically robust. This is not how we can define clinical syndromes or their prevalence! A thread. [Tweet]. @dgurdasani1. https://twitter.com/dgurdasani1/status/1487366920508694529

  5. Jan 2022
    1. Zimmerman, M. I., Porter, J. R., Ward, M. D., Singh, S., Vithani, N., Meller, A., Mallimadugula, U. L., Kuhn, C. E., Borowsky, J. H., Wiewiora, R. P., Hurley, M. F. D., Harbison, A. M., Fogarty, C. A., Coffland, J. E., Fadda, E., Voelz, V. A., Chodera, J. D., & Bowman, G. R. (2021). SARS-CoV-2 simulations go exascale to predict dramatic spike opening and cryptic pockets across the proteome. Nature Chemistry, 13(7), 651–659. https://doi.org/10.1038/s41557-021-00707-0

    1. Budak, C., Soroka, S., Singh, L., Bailey, M., Bode, L., Chawla, N., Davis-Kean, P., Choudhury, M. D., Veaux, R. D., Hahn, U., Jensen, B., Ladd, J., Mneimneh, Z., Pasek, J., Raghunathan, T., Ryan, R., Smith, N. A., Stohr, K., & Traugott, M. (2021). Modeling Considerations for Quantitative Social Science Research Using Social Media Data. PsyArXiv. https://doi.org/10.31234/osf.io/3e2ux

    1. https://english.elpais.com/science-tech/2022-01-14/a-spanish-data-scientists-strategy-to-win-99-of-the-time-at-wordle.html

      Story of a scientist trying to optimize for solutions of Wordle.

      Nothing brilliant here. Depressing that the story creates a mythology around algorithms as the solution rather than delving in a bit into the math and science of information theory to explain why this solution is the correct one.

      Desperately missing from the discussion are second and third order words that would make useful guesses to further reduce the solution space for actual readers.

    1. ReconfigBehSci. (2022, January 9). Just a thought on this and the general vaccine mandate debate. As a behavioural scientist currently stuck in Germany where this is a live debate, it strikes me that the thoughts below address only part of the population: Those not currently vaccinated. But what about ... 1/2 [Tweet]. @SciBeh. https://twitter.com/SciBeh/status/1480213148032450565

    1. In an era where funding for good projects can be hard to come by, or is even endangered, we must affirmatively make the case for the study of how to improve human well-being. This possibility is a fundamental reason why the American public is interested in supporting the pursuit of knowledge, and rightly so.

      Keep in mind that they're asking this in an anti-science and post-fact political climate. Is progress studies the real end goal, or do we need political solutions? Better communication solutions? Better education solutions? Instead? First?

      Are they addressing the correct question/problem here?

    2. Along these lines, the world would benefit from an organized effort to understand how we should identify and train brilliant young people, how the most effective small groups exchange and share ideas, which incentives should exist for all sorts of participants in innovative ecosystems (including scientists, entrepreneurs, managers, and engineers), how much different organizations differ in productivity (and the drivers of those differences), how scientists should be selected and funded, and many other related issues besides.

      These are usually incredibly political questions that aren't always done logically.

      See for example Malcolm Gladwell's podcast episode My Little Hundred Million.